San Luis Weather Records (ARM00087436)

Record envelope, standing records and threshold days for San Luis (ARM00087436), Argentina, with 69 years of record.

Key Facts for San Luis

San Luis (ARM00087436) is a weather station in Argentina at -33.27 latitude and -66.36 longitude, 710 m (2,329 ft) above sea level.
The station reports from 1957 to 2025, 69 years of record.
1,464 records set at San Luis still stand.
Records are tracked for tmin: an element needs 30 years of data to be eligible.
San Luis set a daily record low minimum temperature of -6.3 C (20.7 F) on 1 July 2025.

About the Station

Location: Argentina, -33.27 latitude, -66.36 longitude.
Elevation: 710 m (2,329 ft).
Period of record: 1957 to 2025, 69 years.
Eligible elements: tmin.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at San Luis. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at San Luis, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	42.0 C (107.6 F)	6.7 C (44.1 F)	n/a	n/a
Feb	40.7 C (105.3 F)	5.3 C (41.5 F)	n/a	n/a
Mar	36.6 C (97.9 F)	0.4 C (32.7 F)	n/a	n/a
Apr	33.6 C (92.5 F)	-1.5 C (29.3 F)	n/a	n/a
May	33.0 C (91.4 F)	-6.4 C (20.5 F)	n/a	n/a
Jun	32.0 C (89.6 F)	-8.0 C (17.6 F)	n/a	n/a
Jul	32.2 C (90.0 F)	-9.4 C (15.1 F)	n/a	n/a
Aug	34.6 C (94.3 F)	-5.5 C (22.1 F)	n/a	n/a
Sep	35.7 C (96.3 F)	-3.5 C (25.7 F)	n/a	n/a
Oct	40.0 C (104.0 F)	-0.6 C (30.9 F)	n/a	n/a
Nov	38.5 C (101.3 F)	1.3 C (34.3 F)	n/a	n/a
Dec	41.1 C (106.0 F)	5.0 C (41.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at San Luis still stand. 1958 holds the most, with 57.

Standing records at San Luis by the year they were set
Year set	Standing records
1957	23
1958	57
1967	12
1968	44
1973	12
1974	19
1975	18
1976	10
1977	18
1978	9
1979	26
1980	24
1981	22
1982	11
1983	24
1984	21
1986	1
1987	17
1988	24
1989	20
1990	29
1991	26
1992	21
1993	39
1994	13
1995	35
1996	20
1997	36
1998	26
1999	32
2000	31
2001	36
2002	32
2003	27
2004	26
2005	16
2006	27
2007	44
2008	29
2009	11
2010	25
2011	17
2012	31
2013	37
2014	40
2015	27
2016	26
2017	17
2018	30
2019	29
2020	41
2021	16
2022	51
2023	43
2024	45
2025	21

All-Time Record Progression

3 new records

3 all-time records were set at San Luis between 7 January 2006 and 14 January 2022. Each dot is a new record.

When San Luis set new all-time records
Date	Kind	Detail
2006-01-07	Record high minimum temperature	Record high minimum temperature 27.5 C (81.5 F)
2013-12-25	Record high minimum temperature	Record high minimum temperature 27.9 C (82.2 F)
2022-01-14	Record high minimum temperature	Record high minimum temperature 29.0 C (84.2 F)

Wettest Day of Each Month

Feb: 281.9 mm (11.1 in)

The wettest day on record for each calendar month at San Luis. The most was 281.9 mm (11.1 in) on 28 February 1995.

Record daily precipitation for each month at San Luis
Month	Record daily precipitation (mm)	Date
Jan	214.9 mm (8.5 in)	10 January 2008
Feb	281.9 mm (11.1 in)	28 February 1995
Mar	199.9 mm (7.9 in)	28 March 2008
Apr	156.0 mm (6.1 in)	30 April 1991
May	141.5 mm (5.6 in)	25 May 2024
Jun	47.0 mm (1.9 in)	30 June 1979
Jul	103.9 mm (4.1 in)	3 July 1993
Aug	103.9 mm (4.1 in)	5 August 1996
Sep	141.0 mm (5.6 in)	1 September 2004
Oct	205.0 mm (8.1 in)	10 October 1996
Nov	182.9 mm (7.2 in)	4 November 2008
Dec	194.1 mm (7.6 in)	16 December 1996

Period of Record Coverage

1957 to 2025

57 years of record at San Luis, 1957 to 2025. 57 years have data for under 90 percent of days and are left out of rankings: 1957, 1958, 1967, 1968, 1973, 1974, 1975, 1976 and others.

Days with data per year at San Luis
Year	Days with data	Share of year	Complete
1957	109	30%	No
1958	224	61%	No
1967	19	5%	No
1968	275	75%	No
1973	1	0%	No
1974	2	1%	No
1975	5	1%	No
1976	4	1%	No
1977	12	3%	No
1978	40	11%	No
1979	151	41%	No
1980	144	39%	No
1981	173	47%	No
1982	114	31%	No
1983	133	36%	No
1984	113	31%	No
1985	1	0%	No
1986	5	1%	No
1987	62	17%	No
1988	148	40%	No
1989	140	38%	No
1990	152	42%	No
1991	129	35%	No
1992	140	38%	No
1993	131	36%	No
1994	135	37%	No
1995	143	39%	No
1996	145	40%	No
1997	161	44%	No
1998	177	48%	No
1999	154	42%	No
2000	141	39%	No
2001	172	47%	No
2002	164	45%	No
2003	157	43%	No
2004	148	40%	No
2005	154	42%	No
2006	160	44%	No
2007	183	50%	No
2008	180	49%	No
2009	28	8%	No
2010	176	48%	No
2011	176	48%	No
2012	173	47%	No
2013	179	49%	No
2014	182	50%	No
2015	183	50%	No
2016	189	52%	No
2017	184	50%	No
2018	171	47%	No
2019	162	44%	No
2020	164	45%	No
2021	157	43%	No
2022	170	47%	No
2023	163	45%	No
2024	169	46%	No
2025	108	30%	No

Latest Records

Latest records at San Luis
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 July 2025	San Luis, AR	daily low min	-6.3 C (20.7 F)	3.2 C (5.8 F)	14 years	18 of 100 (Routine)
30 June 2025	San Luis, AR	daily low min	-6.7 C (19.9 F)	1.7 C (3.1 F)	44 years	23 of 100 (Routine)
16 May 2025	San Luis, AR	daily high min	16.5 C (61.7 F)	1.5 C (2.7 F)	2 years	9 of 100 (Routine)
15 May 2025	San Luis, AR	daily high min	14.5 C (58.1 F)	0.8 C (1.4 F)	2 years	8 of 100 (Routine)
12 May 2025	San Luis, AR	daily high min	16.8 C (62.2 F)	2.1 C (3.8 F)	28 years	19 of 100 (Routine)
4 May 2025	San Luis, AR	daily high min	14.4 C (57.9 F)	0.1 C (0.2 F)	18 years	11 of 100 (Routine)
21 March 2025	San Luis, AR	daily high min	20.1 C (68.2 F)	1.4 C (2.5 F)	36 years	20 of 100 (Routine)
7 March 2025	San Luis, AR	daily high min	22.5 C (72.5 F)	0.4 C (0.7 F)	4 years	8 of 100 (Routine)
23 February 2025	San Luis, AR	monthly high min	28.5 C (83.3 F)	0.9 C (1.6 F)	7 years	20 of 100 (Routine)
22 February 2025	San Luis, AR	daily high min	24.4 C (75.9 F)	1.8 C (3.2 F)	20 years	17 of 100 (Routine)
21 February 2025	San Luis, AR	daily high min (Tie)	23.1 C (73.6 F)	tie	6 years	1 of 100 (Routine)
14 February 2025	San Luis, AR	daily high min	22.3 C (72.1 F)	1.2 C (2.2 F)	2 years	9 of 100 (Routine)
10 February 2025	San Luis, AR	daily high min	27.0 C (80.6 F)	5.0 C (9.0 F)	50 years	36 of 100 (Notable)
15 January 2025	San Luis, AR	daily high min	26.6 C (79.9 F)	0.1 C (0.2 F)	3 years	6 of 100 (Routine)
29 December 2024	San Luis, AR	daily high min	24.6 C (76.3 F)	0.8 C (1.4 F)	5 years	9 of 100 (Routine)
24 November 2024	San Luis, AR	daily high min	25.1 C (77.2 F)	3.8 C (6.8 F)	11 years	18 of 100 (Routine)
31 October 2024	San Luis, AR	daily high min	20.4 C (68.7 F)	2.4 C (4.3 F)	15 years	15 of 100 (Routine)
20 October 2024	San Luis, AR	daily high min	22.6 C (72.7 F)	1.5 C (2.7 F)	66 years	28 of 100 (Routine)
30 September 2024	San Luis, AR	daily high min	21.6 C (70.9 F)	3.0 C (5.4 F)	40 years	25 of 100 (Routine)
21 September 2024	San Luis, AR	daily high min	17.1 C (62.8 F)	1.1 C (2.0 F)	48 years	22 of 100 (Routine)

Extremes by Year

1957 to 2025

Yearly extremes at San Luis: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.0 C (107.6 F)	2014	37.6 C (99.7 F)	57
Coldest night (TNn)	-9.4 C (15.1 F)	1989	-4.0 C (24.8 F)	56
Wettest day (Rx1day)	281.9 mm (11.1 in)	1995	71.1 mm (2.8 in)	55
Wettest five days (Rx5day)	242.0 mm (9.5 in)	2008	77.5 mm (3.1 in)	55
Longest dry spell (CDD)	22 days	1980	5 days	55

Hottest day (TXx)

The hottest day of the year at San Luis, 1957 to 2025. The record is 42.0 C (107.6 F) in 2014, marked on the chart; the median year is 37.6 C (99.7 F).

Hottest day (TXx) at San Luis by year
Year	Hottest day (TXx)
1957	37.2 C (99.0 F)
1958	37.2 C (99.0 F)
1967	35.0 C (95.0 F)
1968	41.1 C (106.0 F)
1973	20.0 C (68.0 F)
1974	30.0 C (86.0 F)
1975	30.0 C (86.0 F)
1976	33.0 C (91.4 F)
1977	33.0 C (91.4 F)
1978	36.0 C (96.8 F)
1979	36.0 C (96.8 F)
1980	35.0 C (95.0 F)
1981	35.0 C (95.0 F)
1982	37.9 C (100.2 F)
1983	38.0 C (100.4 F)
1984	36.2 C (97.2 F)
1985	26.4 C (79.5 F)
1986	30.0 C (86.0 F)
1987	40.0 C (104.0 F)
1988	38.5 C (101.3 F)
1989	38.1 C (100.6 F)
1990	37.8 C (100.0 F)
1991	35.0 C (95.0 F)
1992	36.2 C (97.2 F)
1993	36.4 C (97.5 F)
1994	36.4 C (97.5 F)
1995	39.6 C (103.3 F)
1996	37.6 C (99.7 F)
1997	34.8 C (94.6 F)
1998	36.7 C (98.1 F)
1999	37.4 C (99.3 F)
2000	36.6 C (97.9 F)
2001	39.0 C (102.2 F)
2002	36.2 C (97.2 F)
2003	39.0 C (102.2 F)
2004	36.7 C (98.1 F)
2005	36.5 C (97.7 F)
2006	39.2 C (102.6 F)
2007	37.6 C (99.7 F)
2008	38.0 C (100.4 F)
2009	40.0 C (104.0 F)
2010	38.4 C (101.1 F)
2011	39.4 C (102.9 F)
2012	39.4 C (102.9 F)
2013	38.2 C (100.8 F)
2014	42.0 C (107.6 F)
2015	38.0 C (100.4 F)
2016	37.3 C (99.1 F)
2017	40.3 C (104.5 F)
2018	38.5 C (101.3 F)
2019	38.5 C (101.3 F)
2020	39.0 C (102.2 F)
2021	38.8 C (101.8 F)
2022	40.5 C (104.9 F)
2023	39.2 C (102.6 F)
2024	40.3 C (104.5 F)
2025	40.7 C (105.3 F)

Coldest night (TNn)

The coldest night of the year at San Luis, 1957 to 2025. The record is -9.4 C (15.1 F) in 1989, marked on the chart; the median year is -4.0 C (24.8 F).

Coldest night (TNn) at San Luis by year
Year	Coldest night (TNn)
1957	-5.0 C (23.0 F)
1958	-3.9 C (25.0 F)
1967	-3.9 C (25.0 F)
1968	-3.9 C (25.0 F)
1973	-6.0 C (21.2 F)
1974	-3.0 C (26.6 F)
1975	-5.0 C (23.0 F)
1976	-5.0 C (23.0 F)
1977	-4.0 C (24.8 F)
1978	-5.0 C (23.0 F)
1979	-3.0 C (26.6 F)
1980	-6.0 C (21.2 F)
1981	-6.0 C (21.2 F)
1982	3.4 C (38.1 F)
1983	-3.6 C (25.5 F)
1984	-6.4 C (20.5 F)
1985	n/a
1986	16.0 C (60.8 F)
1987	-4.0 C (24.8 F)
1988	-6.2 C (20.8 F)
1989	-9.4 C (15.1 F)
1990	-5.6 C (21.9 F)
1991	-5.2 C (22.6 F)
1992	-4.0 C (24.8 F)
1993	-5.1 C (22.8 F)
1994	-5.3 C (22.5 F)
1995	-3.5 C (25.7 F)
1996	-5.0 C (23.0 F)
1997	-4.0 C (24.8 F)
1998	-0.7 C (30.7 F)
1999	-8.0 C (17.6 F)
2000	-6.1 C (21.0 F)
2001	-4.0 C (24.8 F)
2002	-3.9 C (25.0 F)
2003	-3.3 C (26.1 F)
2004	-3.8 C (25.2 F)
2005	-4.0 C (24.8 F)
2006	-2.5 C (27.5 F)
2007	-8.0 C (17.6 F)
2008	-3.1 C (26.4 F)
2009	-1.0 C (30.2 F)
2010	-4.0 C (24.8 F)
2011	-4.3 C (24.3 F)
2012	-3.6 C (25.5 F)
2013	-5.9 C (21.4 F)
2014	-0.4 C (31.3 F)
2015	0.1 C (32.2 F)
2016	-0.7 C (30.7 F)
2017	-4.1 C (24.6 F)
2018	-1.1 C (30.0 F)
2019	-2.1 C (28.2 F)
2020	-3.0 C (26.6 F)
2021	-3.9 C (25.0 F)
2022	-0.4 C (31.3 F)
2023	-3.4 C (25.9 F)
2024	-2.9 C (26.8 F)
2025	-6.7 C (19.9 F)

Wettest day (Rx1day)

The wettest day of the year at San Luis, 1957 to 2025. The record is 281.9 mm (11.1 in) in 1995, marked on the chart; the median year is 71.1 mm (2.8 in).

Wettest day (Rx1day) at San Luis by year
Year	Wettest day (Rx1day)
1957	n/a
1958	n/a
1967	34.0 mm (1.3 in)
1968	59.9 mm (2.4 in)
1973	39.9 mm (1.6 in)
1974	59.9 mm (2.4 in)
1975	23.1 mm (0.9 in)
1976	70.1 mm (2.8 in)
1977	59.9 mm (2.4 in)
1978	55.1 mm (2.2 in)
1979	52.1 mm (2.1 in)
1980	55.1 mm (2.2 in)
1981	36.1 mm (1.4 in)
1982	103.9 mm (4.1 in)
1983	37.1 mm (1.5 in)
1984	103.9 mm (4.1 in)
1985	4.1 mm (0.16 in)
1986	3.0 mm (0.12 in)
1987	58.9 mm (2.3 in)
1988	23.9 mm (0.9 in)
1989	151.9 mm (6.0 in)
1990	89.9 mm (3.5 in)
1991	156.0 mm (6.1 in)
1992	79.0 mm (3.1 in)
1993	134.1 mm (5.3 in)
1994	112.0 mm (4.4 in)
1995	281.9 mm (11.1 in)
1996	205.0 mm (8.1 in)
1997	41.9 mm (1.6 in)
1998	99.1 mm (3.9 in)
1999	45.0 mm (1.8 in)
2000	34.0 mm (1.3 in)
2001	89.9 mm (3.5 in)
2002	52.1 mm (2.1 in)
2003	106.9 mm (4.2 in)
2004	141.0 mm (5.6 in)
2005	71.9 mm (2.8 in)
2006	69.1 mm (2.7 in)
2007	114.6 mm (4.5 in)
2008	214.9 mm (8.5 in)
2009	69.1 mm (2.7 in)
2010	40.9 mm (1.6 in)
2011	113.8 mm (4.5 in)
2012	112.8 mm (4.4 in)
2013	74.9 mm (2.9 in)
2014	86.1 mm (3.4 in)
2015	149.1 mm (5.9 in)
2016	97.0 mm (3.8 in)
2017	78.0 mm (3.1 in)
2018	71.1 mm (2.8 in)
2019	37.1 mm (1.5 in)
2020	38.1 mm (1.5 in)
2021	111.0 mm (4.4 in)
2022	171.5 mm (6.8 in)
2023	70.1 mm (2.8 in)
2024	142.5 mm (5.6 in)
2025	53.1 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at San Luis, 1957 to 2025. The record is 242.0 mm (9.5 in) in 2008, marked on the chart; the median year is 77.5 mm (3.1 in).

Wettest five days (Rx5day) at San Luis by year
Year	Wettest five days (Rx5day)
1957	n/a
1958	n/a
1967	48.5 mm (1.9 in)
1968	32.5 mm (1.3 in)
1973	95.8 mm (3.8 in)
1974	88.8 mm (3.5 in)
1975	6.1 mm (0.24 in)
1976	76.2 mm (3.0 in)
1977	69.0 mm (2.7 in)
1978	76.2 mm (3.0 in)
1979	91.0 mm (3.6 in)
1980	73.9 mm (2.9 in)
1981	58.2 mm (2.3 in)
1982	111.0 mm (4.4 in)
1983	43.0 mm (1.7 in)
1984	64.3 mm (2.5 in)
1985	0.0 mm (0.00 in)
1986	0.0 mm (0.00 in)
1987	70.0 mm (2.8 in)
1988	41.1 mm (1.6 in)
1989	184.9 mm (7.3 in)
1990	107.9 mm (4.2 in)
1991	53.1 mm (2.1 in)
1992	79.8 mm (3.1 in)
1993	109.2 mm (4.3 in)
1994	134.1 mm (5.3 in)
1995	71.9 mm (2.8 in)
1996	215.9 mm (8.5 in)
1997	65.2 mm (2.6 in)
1998	119.9 mm (4.7 in)
1999	49.1 mm (1.9 in)
2000	21.9 mm (0.9 in)
2001	85.9 mm (3.4 in)
2002	93.2 mm (3.7 in)
2003	153.1 mm (6.0 in)
2004	153.9 mm (6.1 in)
2005	125.0 mm (4.9 in)
2006	100.1 mm (3.9 in)
2007	156.7 mm (6.2 in)
2008	242.0 mm (9.5 in)
2009	81.3 mm (3.2 in)
2010	66.6 mm (2.6 in)
2011	52.1 mm (2.1 in)
2012	147.9 mm (5.8 in)
2013	77.5 mm (3.1 in)
2014	96.0 mm (3.8 in)
2015	155.7 mm (6.1 in)
2016	100.8 mm (4.0 in)
2017	106.0 mm (4.2 in)
2018	40.2 mm (1.6 in)
2019	40.4 mm (1.6 in)
2020	75.0 mm (3.0 in)
2021	109.5 mm (4.3 in)
2022	188.3 mm (7.4 in)
2023	20.3 mm (0.8 in)
2024	63.5 mm (2.5 in)
2025	45.1 mm (1.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at San Luis, 1957 to 2025. The record is 22 days in 1980, marked on the chart; the median year is 5 days.

Longest dry spell (CDD) at San Luis by year
Year	Longest dry spell (CDD)
1957	n/a
1958	n/a
1967	3 days
1968	2 days
1973	19 days
1974	12 days
1975	3 days
1976	10 days
1977	16 days
1978	19 days
1979	11 days
1980	22 days
1981	19 days
1982	5 days
1983	7 days
1984	7 days
1985	6 days
1986	8 days
1987	8 days
1988	8 days
1989	10 days
1990	9 days
1991	4 days
1992	7 days
1993	7 days
1994	8 days
1995	7 days
1996	7 days
1997	5 days
1998	7 days
1999	4 days
2000	3 days
2001	3 days
2002	10 days
2003	13 days
2004	10 days
2005	21 days
2006	3 days
2007	3 days
2008	2 days
2009	2 days
2010	3 days
2011	3 days
2012	4 days
2013	4 days
2014	4 days
2015	3 days
2016	4 days
2017	4 days
2018	3 days
2019	4 days
2020	4 days
2021	3 days
2022	3 days
2023	4 days
2024	3 days
2025	2 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Download the Data

Data for San Luis standing records by year: CSV or JSON. Field meanings are on the data page.
Data for San Luis threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).